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Author: Subject: Science equipment looking for a home
Dr.Bob
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[*] posted on 29-12-2018 at 08:50


Home everyone had a Merry Christmas and a Happy New Year. And thank you to everyone who got glassware over the last year, I am still slowly shrinking the pile of glassware I need to find a home. But it is not quite gone yet.

While looking for some larger flasks, I came upon a couple boxes of large RBFs. I'll try to get photos, but for now, here is what I found: (my light in storage is poor, so hard to see some details, I'll try to get photos next time. I had a couple people ask me about large rbfs recently, so they get preference if two people ask about the same flask at a the same time.

1 x 5L RBF - not sure of brand, maybe Chemglass - 45/50 Center joint plus 2 x 24/40 side joints - $50

1 x 5L RBF At-Mar brand- 55/50 Center joint plus 3 x 29/42 side joints - $50

1 x 5L RBF Pyrex brand- 55/50 Center joint only - this flask is either dirty or etched a little, not sure as I can't clean it out well in my storage space - $30

1 x 3L RBF - Chemglass - 1 x 24/40 joints - $25

1 x 3L RBF - Kontes - 1 x 24/40 joints - $25

1 x 3L RBF - Kimble/Kimex - 45/50 Center joint plus 2 x 24/40 side joints - $40

I also have several 24/40 jointed addition funnels each in 125 and 250 ml size that have either a glass stopcock or a non-standard sized one (mostly Kontes and Ace proprietary ones) that I will sell at a discounted price, as people prefer standard PTFE stopcocks. These normally go for $50 and $60 (125/250 ml) but I will sell them for $35 and $45 since I want to find them a home sooner.

And lastly, I have one remaining 14/20 distillation kit made up which contains a few basic 14/20 rbfs from 10 to 250 ml, including a couple 3 necks, the basic adapters needed, like distillation head, claisen adapter, curved and straight vacuum inlets, gas inlet, stoppers, condenser, and a few other bits. I would ask $100, but can customize it to a degree, as well as add or swap things if desired (some things like a coil condenser, addition funnel, Dean Stark, etc add a little more cost).
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happyfooddance
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[*] posted on 29-12-2018 at 09:03


Quote: Originally posted by Dr.Bob  
Merry Christmas to all you science geeks out there!

In the spirit of Christmas, I have a used set of A and B of the Advanced Organic Chemistry by Francis A. Carey and Richard J. Sundberg, the old green edition from when I was in school, that I will mail free of charge to the first person who responds to this post, signifying that you are really a science geek if reading this at Christmas. I would prefer someone who really can use it, such a college student, and east coasts will save me some postage, but the person to post here wins, then just u2u me your mailing address.

I am trying to clean out some more old books, so I will try to post some more books soon which I will give away for postage only. If you are in NC, I could even give you a bunch, since that might save me postage.

Bob


Books arrived yesterday (that was fast)!

I am so very grateful. I worked my way through O-chem with digital literature and library loans, and I regret it. There is really no substitute for a nice paper copy of a good book, and not having to return it (or pay late fees).

Thanks Dr. Bob! Also, the variac came too :)
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silveroranges
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[*] posted on 16-1-2019 at 08:08


Purchased quite a bit of glassware and lab supplies from Dr.Bob, and hands down best experience. Very professional, quick to reply to emails, fast shipping. And the items are packaged very robustly. 10/10 will buy from again.
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itsafineday
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[*] posted on 17-1-2019 at 09:41


I am very interested in a 14/20 distillation kit if it is still available.
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[*] posted on 31-1-2019 at 17:06
Looking for a home.


I don't know what it is but it is looking for a home. Make an offer!

I posted it in the mystery glassware thread.
https://www.sciencemadness.org/whisper/viewthread.php?tid=31...

Thanks to Dr. Bob for providing me with a stopcock for it.

On that note, in appreciation to the Dr. for his services to me and the community over the years, I will donate 1/2 of what I make to him...so bid big!

(PM me with offers)



mystGlass.jpg - 2.5MB
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j_sum1
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[*] posted on 31-1-2019 at 17:35


I am going to guess it is a jacketed gas absorption apperatus with separation ability.
Coolant through outer jacket. Gas bubbled through frit. Reaction produces two phases and as volume increases the upper portion is taken off. Draining product through stopcock allows for separation into two streams.

It would satisfy my glass fetish nicely, but really there is no need. And shipping from US is usually prohibitive.
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itsafineday
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[*] posted on 14-2-2019 at 05:49


Hey Dr. Bob , Check your U2U when you get a chance.
Quote: Originally posted by Dr.Bob  
Home everyone had a Merry Christmas and a Happy New Year. And thank you to everyone who got glassware over the last year, I am still slowly shrinking the pile of glassware I need to find a home. But it is not quite gone yet.

While looking for some larger flasks, I came upon a couple boxes of large RBFs. I'll try to get photos, but for now, here is what I found: (my light in storage is poor, so hard to see some details, I'll try to get photos next time. I had a couple people ask me about large rbfs recently, so they get preference if two people ask about the same flask at a the same time.

1 x 5L RBF - not sure of brand, maybe Chemglass - 45/50 Center joint plus 2 x 24/40 side joints - $50

1 x 5L RBF At-Mar brand- 55/50 Center joint plus 3 x 29/42 side joints - $50

1 x 5L RBF Pyrex brand- 55/50 Center joint only - this flask is either dirty or etched a little, not sure as I can't clean it out well in my storage space - $30

1 x 3L RBF - Chemglass - 1 x 24/40 joints - $25

1 x 3L RBF - Kontes - 1 x 24/40 joints - $25

1 x 3L RBF - Kimble/Kimex - 45/50 Center joint plus 2 x 24/40 side joints - $40

I also have several 24/40 jointed addition funnels each in 125 and 250 ml size that have either a glass stopcock or a non-standard sized one (mostly Kontes and Ace proprietary ones) that I will sell at a discounted price, as people prefer standard PTFE stopcocks. These normally go for $50 and $60 (125/250 ml) but I will sell them for $35 and $45 since I want to find them a home sooner.

And lastly, I have one remaining 14/20 distillation kit made up which contains a few basic 14/20 rbfs from 10 to 250 ml, including a couple 3 necks, the basic adapters needed, like distillation head, claisen adapter, curved and straight vacuum inlets, gas inlet, stoppers, condenser, and a few other bits. I would ask $100, but can customize it to a degree, as well as add or swap things if desired (some things like a coil condenser, addition funnel, Dean Stark, etc add a little more cost).


[Edited on 14-2-2019 by itsafineday]
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itsafineday
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[*] posted on 16-2-2019 at 03:38


Quote: Originally posted by silveroranges  
Purchased quite a bit of glassware and lab supplies from Dr.Bob, and hands down best experience. Very professional, quick to reply to emails, fast shipping. And the items are packaged very robustly. 10/10 will buy from again.


I can't seem to get him to respond to me since I sent him my email.
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Dr.Bob
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[*] posted on 18-2-2019 at 09:35


I've gotten back to itsafineday, it just took me a while to find the things for his kit. I apolifize to anyone whom I am slow to get back, I am carrying on about 10 or more conversations most days, so I can lose track of one or two sometimes until I get caught up with people and look back. U2Us are hard to keep track of, so I try to use regular email once I get corresponding, I answer that much faster than u2us.

Also, I will be traveling some over the next few weeks, so I will be hard to get up with then, please be patient, but I will have limited email and web access for a few weeks, so if you are wanting something soon, please let me know immediately, and I will try to get it before I leave.
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itsafineday
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[*] posted on 20-2-2019 at 06:47


Thanks Dr. Bob. Sorry for the impatience.
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